Base64 Encoder/Decoder

Base64 is an encoding scheme that converts binary data into a text-based format, making it safe to transmit over protocols that only support plain text (like email or JSON). It works by translating binary data into a 64-character set. This tool handles this process perfectly, including the necessary padding, so you get a reliable result every time.

1. Choose whether you want to 'Encode' to Base64 or 'Decode' from it.
2. For text, simply paste your content into the input field.
3. For files, drag and drop an image, PDF, or any other file.
4. The tool processes it instantly, and the result appears below.
5. Copy the output with a single click or download the decoded file.

• Embedding a small icon directly into a CSS file to reduce HTTP requests.
• Encoding a JSON object for safe transmission in an API call.
• Preparing an image for an inline `src` attribute in HTML.
• Decoding a Base64 string from an API response to view the original content.

• Encode & Decode: Seamlessly switch between encoding and decoding.
• File Support: Works with images, PDFs, and other binary files.
• Real-Time Processing: Instant results as you type or upload.
• URL-Safe Option: Generate URL-safe Base64 for use in web addresses.
• Error Highlighting: Instantly spots and flags invalid Base64 strings.
• 100% Browser-Based: Your data is never uploaded, ensuring complete privacy.

Base64 encoding maps groups of 3 bytes of binary data into 4 characters from a 64-character alphabet. If the data is not a multiple of 3, padding (`=`) is added. This ensures that the binary data can be reliably transmitted through systems designed to handle only text.

All calculations and data processing for this tool are performed locally in your browser. UtilToolkits does not send any of your data to an external server, ensuring your information remains private and secure.